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Polydentate Ligands

in solid KHCO...

Question

in solid KHCO3,HCO3–(anion) ions exist as

Monomer

Dimer

Polymer

H+ & CO3(2-)

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Solution

n KHCO3, there is ionic bonding beween K+ and HCO3- ions, and the bonding within the bicarbonate ion (HCO3-) is covalent. And, the HCO3- ions exist as dimers by means of hydrogen bonding

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{H C O_{3}}^{-}

ions joined by H-bonding in

K H C O_{3}

Q. In both crystalline NaHCO3 and KHCO3,HCO3- forms only dimeric anion through hydrogen bond.justify this statement.

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, the amphiprotic anion undergoes ionization to form

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ion and hydrolysis to form

O H^{-} i o n

H C O_{3}^{-} + H_{2} O i o n i z a t i o n ⇋ C O_{3}^{2 -} + H_{2} O

H C O_{3}^{-} + H_{2} O i o n i z a t i o n ⇋ H_{2} C O_{3} + O H^{-}

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s p^{3} d

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P C l_{6}^{-}

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Read the above assertion and reason and choose the correct statement regarding it.

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Polydentate Ligands

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